摘要
采用间歇曝气SBR工艺处理模拟生活污水,考察了不同曝气频率(n)及进水方式下总氮的脱除效果。结果表明:在连续进水情况下,n值越大,越有利于同步硝化/反硝化和总氮的脱除;当停曝/曝气各为5 min时,总氮去除率达到87.2%。在瞬时进水情况下,n值不可太大或太小,当停曝/曝气各为10 min时,总氮去除率达到76.5%。在其他参数相同的情况下,连续进水间歇曝气SBR工艺的脱氮效果明显优于瞬时进水间歇曝气SBR工艺。
This paper reports the experimental results of the application of a sequencing batch reactor to treat synthetic domestic sewage for enhancing biological nitrogen removal under different intermittent aeration rate and different feed mode.The results showed that 87.2% of TN was removed when adopt the 5～5 min mode and the efficiency of nitrogen removal can be improved with the intermittent aeration rate increased under the continuous feeding intermittent aeration mode.Meanwhile,the intermittent aeration rate can not be so high or so low for enhancing TN removal and 76.5% of TN was removed when adopt the 10～10 min mode under the instantaneous feeding one.The continuous feeding intermittent aeration SBR was better than the instantaneous feeding one as referred to TN removal.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2010年第12期95-97,116,共4页
Journal of Wuhan University of Technology
基金
洛阳理工学院青年基金(2008QZ24)
关键词
连续进水
瞬时进水
间歇曝气
脱氮
SBR
continuous feeding
instantaneous feeding
intermittent aeration
biological nitrogen removal
sequencing batch reactor
